320cl gone haywire, operating itself

Good day team,am working on a 320cl excavator which had a Jack hammer attachment before. The new owners decided to convert it to an excavator by completely removing all the attachment lines,main lines and pilot lines. It looks good but the hydraulic hoses on the pilot manifold has become truncated, after about 3 technicians worked on it and added more errors. Now the machine operates itself as soon as you get the engine running . I don't have access to cat SIS ,can anyone help me with the hydraulic schematic of a 320cl pilot manifold .Am desperate